java记事本1.2版

/**
*
*/
package com.niit.javagui;

import java.awt.Color;
import java.awt.MenuBar;
import java.awt.event.ActionEvent;
import java.awt.event.InputEvent;
import java.awt.event.ItemEvent;
import java.awt.event.ItemListener;
import java.awt.event.KeyEvent;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.io.OutputStream;

import javax.swing.AbstractAction;
import javax.swing.JFileChooser;
import javax.swing.JFrame;
import javax.swing.JMenu;
import javax.swing.JMenuBar;
import javax.swing.JMenuItem;
import javax.swing.JPanel;
import javax.swing.JTabbedPane;
import javax.swing.JTextPane;
import javax.swing.KeyStroke;
import javax.swing.text.DefaultStyledDocument;

/**
* @author: Annie
* @date:2016年5月30日
* @description:简单的记事本
*/
public class Notepad extends JFrame {
public static void main(String[] args) {
new Notepad();
}

JTabbedPane tabbedPane;
JPanel jp1,jp2,jp3;
JMenuBar menuBar;
JMenu filemenu,editMenu,formatMenu,helpmenu,checkMenu;
JMenuItem itemNew,itemOpen,itemSave,itemSaveAs,itemSet,itemPrint,itemExit,
itemAutomatic,itemFont,itemaStatusBar,itemaCheckHelp,itemAbout,itemCopy,itemCut,itemPast;
JTextPane textpane;
JFileChooser fileChooser;
public Notepad(){
setVisible(true);
setSize(400,400);
setTitle("记事本");
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
instantiationObject();
keyWord();
addFunction();

}

/**
* 实例化对象方法
* */
public void instantiationObject(){
jp1 = new JPanel();
jp2 = new JPanel();
jp3 = new JPanel();
tabbedPane = new JTabbedPane(JTabbedPane.BOTTOM);
menuBar = new JMenuBar();
filemenu = new JMenu("文件（F）");
editMenu = new JMenu("编辑（E）");
formatMenu = new JMenu("格式（o）");
checkMenu = new JMenu("查看（V）");
helpmenu = new JMenu("帮助（H）");

itemNew = new JMenuItem(new newAction());
itemOpen = new JMenuItem(new OpenAction());
itemSave = new JMenuItem(new SaveAction());
itemSaveAs = new JMenuItem("另存为");
itemSet = new JMenuItem("页面设置");
itemPrint = new JMenuItem("打印");
itemExit = new  JMenuItem(new ExistAction());

itemCopy = new JMenuItem(new CopyAction());
itemPast = new JMenuItem(new PasteAction());
itemCut = new JMenuItem(new CutAction());

itemAutomatic = new JMenuItem("自动转行");
itemFont = new JMenuItem("字体");

itemaStatusBar = new JMenuItem("状态栏");

itemaCheckHelp = new JMenuItem("查看帮助");
itemAbout = new JMenuItem("关于记事本");

textpane = new JTextPane(); //文本窗格，编辑窗口

fileChooser = new JFileChooser();//文件选择器

}

/**
* 添加组件方法
* */
public void addFunction(){
setJMenuBar(menuBar);

menuBar.add(filemenu);
menuBar.add(editMenu);
menuBar.add(formatMenu);
menuBar.add(checkMenu);
menuBar.add(helpmenu);

filemenu.add(itemNew);
filemenu.add(itemOpen);
filemenu.add(itemSave);
filemenu.add(itemSaveAs);
filemenu.addSeparator();
filemenu.add(itemSet);
filemenu.add(itemPrint);
filemenu.add(itemExit);

editMenu.add(itemCopy);
editMenu.add(itemPast);
editMenu.add(itemCut);

formatMenu.add(itemAutomatic);
formatMenu.add(itemFont);

checkMenu.add(itemaStatusBar);

helpmenu.add(itemaCheckHelp);
helpmenu.add(itemAbout);

add(textpane);

}

/**
* 实例化对象方法
* */
public void keyWord(){
itemNew.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_N,InputEvent.CTRL_MASK));
itemOpen.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_O,InputEvent.CTRL_MASK));
itemSave.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_S,InputEvent.CTRL_MASK));
itemSaveAs.setAccelerator(KeyStroke.getKeyStroke('A'));
itemSet.setAccelerator(KeyStroke.getKeyStroke('U'));
itemPrint.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_P,InputEvent.CTRL_MASK));
itemExit.setAccelerator(KeyStroke.getKeyStroke('X'));

itemAutomatic.setAccelerator(KeyStroke.getKeyStroke('W'));
itemFont.setAccelerator(KeyStroke.getKeyStroke('F'));

itemaStatusBar.setAccelerator(KeyStroke.getKeyStroke('S'));

itemaCheckHelp.setAccelerator(KeyStroke.getKeyStroke('H'));
itemAbout.setAccelerator(KeyStroke.getKeyStroke('A'));
}

class  newAction extends AbstractAction{
public newAction(){
super("新建");
}
@Override
public void actionPerformed(ActionEvent e) {
textpane.setDocument(new DefaultStyledDocument());

}

}

class OpenAction extends AbstractAction{
public OpenAction() {
super("打开");
}
@Override
public void actionPerformed(ActionEvent e) {
int i = fileChooser.showOpenDialog(Notepad.this); // 显示打开文件选择对话框
if(i == JFileChooser.APPROVE_OPTION){//点击对话框中打开选项
File f = fileChooser.getSelectedFile();//得到选择的文件
try {
InputStream is = new FileInputStream(f);
textpane.read(is, "HTMLDocument"); //读入文件到文本窗格

} catch (Exception e1) {
e1.printStackTrace();
}
}

}

}

class SaveAction extends AbstractAction{
public SaveAction() {
super("保存");
}
@Override
public void actionPerformed(ActionEvent e) {
int i =fileChooser.showSaveDialog(Notepad.this);
if(i == JFileChooser.APPROVE_OPTION ){
/* 1.得到选择的文件   2.得到输出流  3.写入 */
File f =fileChooser.getSelectedFile();
try {
OutputStream out = new FileOutputStream(f);
out.write(textpane.getText().getBytes());
} catch (Exception e1) {
e1.printStackTrace();
}
}
}

}

class ExistAction extends AbstractAction{
public     ExistAction(){
super("退出");
}
@Override
public void actionPerformed(ActionEvent e) {
System.exit(0);

}
}

class CutAction extends AbstractAction { //剪切命令
public CutAction() {
super("剪切");
}
public void actionPerformed(ActionEvent e) {
textpane.cut(); //调用文本窗格的剪切命令
}
}

class CopyAction extends AbstractAction { //拷贝命令
public CopyAction() {
super("复制");
}
public void actionPerformed(ActionEvent e) {
textpane.copy(); //调用文本窗格的拷贝命令
}
}

class PasteAction extends AbstractAction { //粘贴命令
public PasteAction() {
super("粘贴");
}
public void actionPerformed(ActionEvent e) {
textpane.paste(); //调用文本窗格的粘贴命令
}
}

}